The reaction cycles for water-splitting based on redox reactions of alkali metals are composed of four reactions, which are
hydrogen generation by solid-liquid reaction, metal separation by thermolysis, oxygen generation by hydrolysis, and phase
transitio
n of the metal. Although all the cycles theoretically require more than 1000 C in thermodynamic equilibrium condition,
th
e reaction temperature are reduced to below 800 C by no
n−equilibrium techniques using phase transition of metal vapor. In
this work, thermodynamic analyses are performed by using the parameters such as operating temperature and partial pressures of
th
e products obtained by the experiments to determine that the alkali metal redox cycles are p
otential hydrogen production
technique as thermochemical energy storage.
The reaction cycles for water-splitting based on redox reactions of alkali metals are composed of four reactions, which are
hydrogen generation by solid-liquid reaction, metal separation by thermolysis, oxygen generation by hydrolysis, and phase
transitio
n of the metal. Although all the cycles theoretically require more than 1000 C in thermodynamic equilibrium condition,
th
e reaction temperature are reduced to below 800 C by no
n−equilibrium techniques using phase transition of metal vapor. In
this work, thermodynamic analyses are performed by using the parameters such as operating temperature and partial pressures of
th
e products obtained by the experiments to determine that the alkali metal redox cycles are p
otential hydrogen production
technique as thermochemical energy storage.
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